Attachment for ink-fountains of printing-presses.



PATENTED FER-19., 1907.

R. J. GRBE-NWAY, JR. ATTACHMENT FOR INK POUNTAINS 0F PRINTING P'RBSSES.

APPLICATION FILED DOT. 27.1906.

Wiinemwew 24 UNITED STATES PATENT EEIGE.

RICHARD J. GREENWAY, JR, OF IVESTERLY, RHODE ISLAND, ASSIGNOR TO O. B.OOTTRELL & SONS COMPANY, OF NEWV YORK, N. Y., A CORPORATION OF NEWVJERSEY.

Specification of Letters Patent.

Patented Feb. 19, 1907.

Application filed October 27.1906. Serial No. 284.617.

T aZZ whom it may concern:

Be it known that I, RICHARD J. GREEN- WAY, Jr., a citizen of the UnitedStates, and a resident of Westerly, in the county of W ashington andState of Rhode island, have invented a new and useful Improvement inAttachments for Ink-Fountains of Printing- Iresses, of which thefollowing is a specification.

This invention consists in an attachment for the ink-fountains ofprintingpresses, and has more particularly for its ob ect to provide adevice designed to prevent the supply of ink on the fountain-roll frombeing transferred at a predetermined point to the duetor-roll.

A further object is to provide a device of the above character which maybe adjusted to any desired point along the fountain-roll withoutrequiring a specially-constructed fountain and without disturbing theset or adjustment of the regular fountain-screws.

1n the accompanying drawings, Figure 1 is a detail vertical sectionthrough an ink-foun- 2 5 tain and its adjacent parts with one of theattachments in position with respect to the same. Fig. 2 is a partialplan view showing two of the attachments in position for use; and Fig. 3is a detail plan view of one of the 0 attachments.

The side frames of the press are denoted by 1 and 2, between which issupported the inkfountain. The fountain proper consists of a bottom 3and uprising ends 1 and 5, from which project plates 6 and 7, attachedto the side frames 1 and 2. The fountain-roll (denoted by 8) isrotatably mounted in the ends 4: and 5 of the fountain-frame. A falsebot tom 9 is "fitted to slide between the ends =1 and 4 5 and is held inposition on the bottom 3 by screws 10.

false bottom 9 with its forward edge normally spaced a slight distanceaway from the fountain-roll S. A rocking plate 12 engages the under sideof the forward edge of the blade 1 1 and is in turn engaged by a seriesof setscrews 13, by means of which the front edge of the blade may beadjusted so as to permit the required amount of ink to be deposited 5upon the surface of the fountain-roll.

The ductor-roll is denoted by 1.4, and it is mounted, as is usual, inthe free ends of arms 15 and 16, carried by a shaft 17, the parts be-The blade 11 is secured to the ing so arranged that the doctor-roll maybe brought into engagement with the fountainroll and then intoengagement with the form-inking apparatus (not shown herein) in thewell-known manner.

It has heretofore been necessary where open spaces or margins occurredin the printing-form, at which little or no ink was required, to adjustthe blade in the fountain with the adjusting-screws unevenly, so as tocut oil or stop the flow of ink onto certain parts of the fountain-roll.In doing this an undue strain has frequently been brought onto the bladesufficient to spring and often at times to buckle and thereby ruiningthe blade. The object of this invention is to provide a device whichwill effectually prevent the supply of ink on the fountain-roll frombeing transferred to the ductor-roll at any point thereon withoutchanging the adjustment of the blade at di'llcrcnt points along thesame, the blade being allowed to remain in its proper adjustment withrespect to the fountain-roll at all times.

The attachment comprises a thin strip of suitable material 18such, forinstance, as sheet metal whi ch strip is supported from a cross-rod 19,in the present instance, by providing an arm 20, adjustably secured onthe rod 19, to which arm the strip 18 is fastened. This strip may beinserted between the fountain-roll and ductor-roll at any desired pointalong the same, a set-screw 21 being provided for this purpose, whichset-screw is carried by the arm 20 and is arranged to impinge againstthe cross-rod 19. These strips 18 may be made of various widths tocorrespomlwith the width of the ductor-roll which it is desired toprotect from the deposit of ink, and, if so desired, several of thesestrips may be located side by side at any one point along thefountain-roll for protecting a greater portion of the ductor-roll fromthe transfer of ink thereon.

When not in use, the strips may be adjusted out of the way to one sideof the inking device.

The strip 18 may be held against the fountain-roll under the requiredamount of tension by the proper adjustment of the arm 20 on thecross-rod 19.

What I claim as my invention is 1. A fountain-roll, means for supplyingink thereto, a ductor-roll, a cross-rod, a strip of suitable materialcarried by the cross-rod and interposed between the two rolls to preventthe transfer of ink from the fountain-roll to the ductor-roll at apredetermined point and a device carried by the said strip foradjustably securing the strip rotatively to hold it against thefountain-roll under the required tension.

2. A fountain-roll, means for sup lying ink thereto, a ductor-roll, across-r0 an arm. carried by the crossrod, a strip of suitable 1 thereto,a ductorroll, a cross-rod, an arm carried by the cross-rod, a strip ofsuitable material carried by the arm and interposed between the tworolls to prevent the transfer of ink from the fountain-roll to theductorroll at a predetermined point and a device carried by the arm foradjustably securing the strip rotatively and laterally.

4. Afountain-roll, means for supplying ink thereto, a ductor-roll, across-rod, an arm carried by the cross-rod, a strip of suitable materialcarried by the arm and interposed between the two rolls to prevent thetransfer of ink from the fountain-roll to the ductorroll at apredetermined point, and a set-screw carried by the arm for adjustablysecuring the strip rotatively and laterally.

In testimony that I claim the foregoing as my invention 1 have signed myname, in presence of two Witnesses, this 17th day of October, 1905.

RICHARD J. GREENWAY, JR.

Witnesses A. R. STILLMAN, G. BURDICK.

